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Test TC-20A - Injector No. 2 Control Circuit

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION  Directory. For wiring diagram, see WIRING DIAGRAMS article.
  1. Turn ignition off. It may be necessary to remove intake plenum for access to injector connectors. Disconnect injector No. 2 connector. Using an external ohmmeter, check resistance across injector No. 2 terminals. If resistance is 10-16 ohms, go to next step. If resistance is not 10-16 ohms, replace injector No. 2. Perform TEST VER-2A.
  2. Turn ignition on. Using scan tool, actuate ASD relay. Using scan tool in voltmeter mode, check voltage on injector No. 2 connector ASD relay output circuit (Black/Red wire). If voltage cycles high and low, go to next step. If voltage does not cycle high and low, repair open ASD relay output circuit. Perform TEST VER-2A.
  3. Turn ignition off. Disconnect Powertrain Control Module (PCM) connector. Using scan tool in ohmmeter mode, check resistance of PCM connector terminal No. 17 injector No. 2 driver circuit (Yellow/Red wire). If resistance is 5 ohms or more, go to next step. If resistance is less than 5 ohms, repair short to ground on injector No. 2 driver circuit. Perform TEST VER-2A.
  4. Using an external ohmmeter, check resistance of injector No. 2 driver circuit (Yellow/Red wire). If resistance is less than 5 ohms, replace PCM. Perform TEST VER-2A. If resistance is 5 ohms or more repair open injector No. 2 driver circuit. Perform TEST VER-2A.
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